hemophiliac vs diseased person

hemophiliac and diseased person both are nouns.

Word	Noun	Adjective	Verb	Adverb
hemophiliac	Yes	No	No	No
diseased person	Yes	No	No	No

As nouns, diseased person is a hypernym of hemophiliac; that is, diseased person is a word with a broader meaning than hemophiliac:

hemophiliac: someone who has hemophilia and is subject to uncontrollable bleeding
diseased person: a person suffering from an illness

Other hypernyms of hemophiliac include sick person, sufferer.

hemophiliac (noun)	diseased person (noun)
someone who has hemophilia and is subject to uncontrollable bleeding	a person suffering from an illness